My steam hours betray my actual hours; I have well over 5,000 hours total with this game alone, and am still entertained by it.
This game was made 12 years ago. It still works, and is still alive with new fan-made content. The base game is fun, but figure out how to get custom content and mods working, and you will have so much fun just making buildings, let alone an entire park. With the genre being revived in games like Planet Coaster and Parkitect (Let's face it, RCT World is dead to us all) this is an excellent choice to tide you over until Planet Coaster releases, or if it is on sale (Or hell, even if it isn't.)